MediaControllerCompatApi21.java revision f87e8513ce55303168acd9c698acd5bbd33b9bad 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.support.v4.media.session;
18
19import android.media.MediaMetadata;
20import android.media.Rating;
21import android.media.session.MediaController;
22import android.media.session.MediaSession;
23import android.media.session.PlaybackState;
24import android.os.Bundle;
25import android.os.Handler;
26import android.os.ResultReceiver;
27import android.view.KeyEvent;
28
29class MediaControllerCompatApi21 {
30    public static Object fromToken(Object sessionToken) {
31        return new MediaController((MediaSession.Token) sessionToken);
32    }
33
34    public static Object createCallback(Callback callback) {
35        return new CallbackProxy<Callback>(callback);
36    }
37
38    public static void addCallback(Object controllerObj, Object callbackObj, Handler handler) {
39        ((MediaController)controllerObj).addCallback(
40                (MediaController.Callback)callbackObj, handler);
41    }
42
43    public static void removeCallback(Object controllerObj, Object callbackObj) {
44        ((MediaController)controllerObj).removeCallback((MediaController.Callback)callbackObj);
45    }
46
47    public static Object getTransportControls(Object controllerObj) {
48        return ((MediaController)controllerObj).getTransportControls();
49    }
50
51    public static Object getPlaybackState(Object controllerObj) {
52        return ((MediaController)controllerObj).getPlaybackState();
53    }
54
55    public static Object getMetadata(Object controllerObj) {
56        return ((MediaController)controllerObj).getMetadata();
57    }
58
59    public static int getRatingType(Object controllerObj) {
60        return ((MediaController)controllerObj).getRatingType();
61    }
62
63    public static Object getVolumeInfo(Object controllerObj) {
64        return ((MediaController)controllerObj).getVolumeInfo();
65    }
66
67    public static boolean dispatchMediaButtonEvent(Object controllerObj, KeyEvent event) {
68        return ((MediaController)controllerObj).dispatchMediaButtonEvent(event);
69    }
70
71    public static void sendControlCommand(Object controllerObj,
72            String command, Bundle params, ResultReceiver cb) {
73        ((MediaController)controllerObj).sendControlCommand(command, params, cb);
74    }
75
76    public static class TransportControls {
77        public static void play(Object controlsObj) {
78            ((MediaController.TransportControls)controlsObj).play();
79        }
80
81        public static void pause(Object controlsObj) {
82            ((MediaController.TransportControls)controlsObj).pause();
83        }
84
85        public static void stop(Object controlsObj) {
86            ((MediaController.TransportControls)controlsObj).stop();
87        }
88
89        public static void seekTo(Object controlsObj, long pos) {
90            ((MediaController.TransportControls)controlsObj).seekTo(pos);
91        }
92
93        public static void fastForward(Object controlsObj) {
94            ((MediaController.TransportControls)controlsObj).fastForward();
95        }
96
97        public static void rewind(Object controlsObj) {
98            ((MediaController.TransportControls)controlsObj).rewind();
99        }
100
101        public static void skipToNext(Object controlsObj) {
102            ((MediaController.TransportControls)controlsObj).skipToNext();
103        }
104
105        public static void skipToPrevious(Object controlsObj) {
106            ((MediaController.TransportControls)controlsObj).skipToPrevious();
107        }
108
109        public static void setRating(Object controlsObj, Object ratingObj) {
110            ((MediaController.TransportControls)controlsObj).setRating((Rating)ratingObj);
111        }
112    }
113
114    public static class VolumeInfo {
115        public static int getVolumeType(Object volumeInfoObj) {
116            return ((MediaController.VolumeInfo)volumeInfoObj).getVolumeType();
117        }
118
119        public static int getAudioStream(Object volumeInfoObj) {
120            return ((MediaController.VolumeInfo)volumeInfoObj).getAudioStream();
121        }
122
123        public static int getVolumeControl(Object volumeInfoObj) {
124            return ((MediaController.VolumeInfo)volumeInfoObj).getVolumeControl();
125        }
126
127        public static int getMaxVolume(Object volumeInfoObj) {
128            return ((MediaController.VolumeInfo)volumeInfoObj).getMaxVolume();
129        }
130
131        public static int getCurrentVolume(Object volumeInfoObj) {
132            return ((MediaController.VolumeInfo)volumeInfoObj).getCurrentVolume();
133        }
134    }
135
136    public static interface Callback {
137        public void onSessionEvent(String event, Bundle extras);
138        public void onPlaybackStateChanged(Object stateObj);
139        public void onMetadataChanged(Object metadataObj);
140    }
141
142    static class CallbackProxy<T extends Callback> extends MediaController.Callback {
143        protected final T mCallback;
144
145        public CallbackProxy(T callback) {
146            mCallback = callback;
147        }
148
149        @Override
150        public void onSessionEvent(String event, Bundle extras) {
151            mCallback.onSessionEvent(event, extras);
152        }
153
154        @Override
155        public void onPlaybackStateChanged(PlaybackState state) {
156            mCallback.onPlaybackStateChanged(state);
157        }
158
159        @Override
160        public void onMetadataChanged(MediaMetadata metadata) {
161            mCallback.onMetadataChanged(metadata);
162        }
163    }
164}
165